com.spotify.helios.agent

Class InterruptingScheduledService

java.lang.Object

com.google.common.util.concurrent.AbstractIdleService

com.spotify.helios.agent.InterruptingScheduledService

All Implemented Interfaces:

com.google.common.util.concurrent.Service

Direct Known Subclasses:

DeadAgentReaper, ExpiredJobReaper, JobHistoryReaper, OldJobReaper, SignalAwaitingService

public abstract class InterruptingScheduledService
extends com.google.common.util.concurrent.AbstractIdleService

Runs runOneIteration() on a ScheduledExecutorService (see schedule(java.lang.Runnable, java.util.concurrent.ScheduledExecutorService)) to do periodic operations.

This class is similar to AbstractScheduledService except that this class's shutDown() method will interrupt the thread running the periodic operation.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.common.util.concurrent.Service

com.google.common.util.concurrent.Service.Listener, com.google.common.util.concurrent.Service.State

Constructor Summary

Constructors

Constructor and Description
InterruptingScheduledService()

Method Summary

Modifier and Type	Method and Description
protected void	beforeIteration() A hook for subclasses to insert extra steps before runOneIteration().
protected abstract void	runOneIteration()
protected abstract ScheduledFuture<?>	schedule(Runnable runnable, ScheduledExecutorService executorService)
protected void	shutDown()
protected void	startUp()

Methods inherited from class com.google.common.util.concurrent.AbstractIdleService

addListener, awaitRunning, awaitRunning, awaitTerminated, awaitTerminated, executor, failureCause, isRunning, serviceName, startAsync, state, stopAsync, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

InterruptingScheduledService

public InterruptingScheduledService()

Method Detail

beforeIteration

protected void beforeIteration()
                        throws InterruptedException

A hook for subclasses to insert extra steps before runOneIteration().

Throws:

InterruptedException

runOneIteration

protected abstract void runOneIteration()
                                 throws InterruptedException

Throws:

InterruptedException

startUp

protected void startUp()
                throws Exception

Specified by:

startUp in class com.google.common.util.concurrent.AbstractIdleService

Throws:

Exception

shutDown

protected void shutDown()
                 throws Exception

Specified by:

shutDown in class com.google.common.util.concurrent.AbstractIdleService

Throws:

Exception

schedule

protected abstract ScheduledFuture<?> schedule(Runnable runnable,
                                               ScheduledExecutorService executorService)